EP1913688A4 - Method and apparatus for implementing soft switching in a class d amplifier - Google Patents

Method and apparatus for implementing soft switching in a class d amplifier

Info

Publication number
EP1913688A4
EP1913688A4 EP06788896A EP06788896A EP1913688A4 EP 1913688 A4 EP1913688 A4 EP 1913688A4 EP 06788896 A EP06788896 A EP 06788896A EP 06788896 A EP06788896 A EP 06788896A EP 1913688 A4 EP1913688 A4 EP 1913688A4
Authority
EP
European Patent Office
Prior art keywords
amplifier
class
soft switching
implementing soft
implementing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06788896A
Other languages
German (de)
French (fr)
Other versions
EP1913688B1 (en
EP1913688A2 (en
Inventor
Eric Mendenhall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RGB Systems Inc
Original Assignee
RGB Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RGB Systems Inc filed Critical RGB Systems Inc
Publication of EP1913688A2 publication Critical patent/EP1913688A2/en
Publication of EP1913688A4 publication Critical patent/EP1913688A4/en
Application granted granted Critical
Publication of EP1913688B1 publication Critical patent/EP1913688B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/459—Ripple reduction circuitry being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)
EP06788896.6A 2005-07-28 2006-07-28 Method and apparatus for implementing soft switching in a class d amplifier Active EP1913688B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70424105P 2005-07-28 2005-07-28
PCT/US2006/029595 WO2007016428A2 (en) 2005-07-28 2006-07-28 Method and apparatus for implementing soft switching in a class d amplifier

Publications (3)

Publication Number Publication Date
EP1913688A2 EP1913688A2 (en) 2008-04-23
EP1913688A4 true EP1913688A4 (en) 2009-12-16
EP1913688B1 EP1913688B1 (en) 2015-09-09

Family

ID=37709246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06788896.6A Active EP1913688B1 (en) 2005-07-28 2006-07-28 Method and apparatus for implementing soft switching in a class d amplifier

Country Status (7)

Country Link
EP (1) EP1913688B1 (en)
JP (1) JP2009507403A (en)
CN (1) CN101385237B (en)
CA (1) CA2616220A1 (en)
HK (1) HK1126901A1 (en)
MX (1) MX2008001325A (en)
WO (1) WO2007016428A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010213114A (en) * 2009-03-11 2010-09-24 Yamaha Corp Class d amplifier circuit
CN101714853B (en) * 2009-11-20 2012-12-12 恩平市西特尔电子科技有限公司 Bipolar soft-switching PWM power amplifier
FR3055173B1 (en) * 2016-08-22 2019-08-16 Devialet AMPLIFIER DEVICE COMPRISING A COMPENSATION CIRCUIT
WO2020014378A1 (en) 2018-07-10 2020-01-16 Bose Corporation Self-boosting amplifier
JP7283151B2 (en) * 2019-03-18 2023-05-30 日本電気株式会社 power amplifier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571551A (en) * 1984-02-28 1986-02-18 Washington Innovative Technology, Inc. Flyback modulated switching power amplifier
WO1998037628A1 (en) * 1997-02-21 1998-08-27 Claudio Lastrucci A reconstruction filter for eliminating the switching residue in a switched system or similar
EP0877467A1 (en) * 1997-05-09 1998-11-11 Elettronica 97 di Ing. Giovanni Casorerio & C. S.n.c. Device for reducing the ripple component of the signal fed to a load by a switch mode power amplifier
US6304137B1 (en) * 1999-12-23 2001-10-16 Red Chip Company Limited Output stage for high power class D amplifiers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2784783B2 (en) * 1989-01-31 1998-08-06 ソニー株式会社 Filter circuit
US5963086A (en) * 1997-08-08 1999-10-05 Velodyne Acoustics, Inc. Class D amplifier with switching control
US6232833B1 (en) * 1998-11-18 2001-05-15 Intersil Corporation Low noise low distortion class D amplifier
EP1014397A1 (en) * 1998-12-15 2000-06-28 Alcatel High leakage inductor for a switched power converter
US6462962B1 (en) * 2000-09-08 2002-10-08 Slobodan Cuk Lossless switching DC-to-DC converter
US6639815B1 (en) * 2002-05-04 2003-10-28 Jeff Gucyski Precision switching power amplifier comprising instantaneously interruptible power source
JP2004297551A (en) * 2003-03-27 2004-10-21 Tdk Corp Noise filter device and switching power supply
JP4415371B2 (en) * 2003-08-05 2010-02-17 横河電機株式会社 Switching power supply
JP4067475B2 (en) * 2003-08-21 2008-03-26 シャープ株式会社 Signal amplification output device
CN1322659C (en) * 2004-07-16 2007-06-20 中国科学院上海光学精密机械研究所 Low-power semiconductor laser driving power supply

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571551A (en) * 1984-02-28 1986-02-18 Washington Innovative Technology, Inc. Flyback modulated switching power amplifier
WO1998037628A1 (en) * 1997-02-21 1998-08-27 Claudio Lastrucci A reconstruction filter for eliminating the switching residue in a switched system or similar
EP0877467A1 (en) * 1997-05-09 1998-11-11 Elettronica 97 di Ing. Giovanni Casorerio & C. S.n.c. Device for reducing the ripple component of the signal fed to a load by a switch mode power amplifier
US6304137B1 (en) * 1999-12-23 2001-10-16 Red Chip Company Limited Output stage for high power class D amplifiers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HAMILL D C ET AL: "A 'zero' ripple technique applicable to any DC converter", POWER ELECTRONICS SPECIALISTS CONFERENCE, 1999. PESC 99. 30TH ANNUAL I EEE CHARLESTON, SC, USA 27 JUNE-1 JULY 1999, PISCATAWAY, NJ, USA,IEEE, US, vol. 2, 27 June 1999 (1999-06-27), pages 1165 - 1171, XP010346825, ISBN: 978-0-7803-5421-0 *
See also references of WO2007016428A2 *

Also Published As

Publication number Publication date
WO2007016428A2 (en) 2007-02-08
HK1126901A1 (en) 2009-09-11
JP2009507403A (en) 2009-02-19
WO2007016428A3 (en) 2007-04-26
CN101385237B (en) 2012-12-12
MX2008001325A (en) 2008-03-18
EP1913688B1 (en) 2015-09-09
EP1913688A2 (en) 2008-04-23
CN101385237A (en) 2009-03-11
CA2616220A1 (en) 2007-02-08

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